Same is the case with me, I ordered a Mouse but Seller sent me a Different model and That was defective and a Used one..
I asked to seller, Seller said He will Reship the Item that was ordered, He kept fooling me for 7 days and did not ship the Item then he started not to receive any of my calls....
Now I raised claim on eBay, same situation now, No solution, No replacement, No refund....
eBay and sellers cheated me, If they don't care for me and I don't get refund then I am gonna take revenge, I will spoil their Image all over the internet....